The fifth release candidate for NetBSD 4.0 has been released. "We hope that this release candidate to be the last one before the final release of NetBSD 4.0. Please help us to test it as much as possible to make NetBSD 4.0 a solid release."

I've been using NetBSD -current for a few weeks now. I'm coming from Linux. I must say I'm impressed. The only thing that takes some getting used to is that you really should use pkgsrc to install packages. A lot of apps don't natively support BSD, so you need to use pkgsrc, so the proper patches are applied.